If you have found a .bin save file from a community member or friend, follow these steps to import it into your game:
Cut the resulting shape in half; the left side will retain the small square on the upper layer while discarding the unwanted bottom-right piece.
If you're looking to skip the grind or investigate high-tier factory layouts, here is how you can manage save files or master the Level 20 "Logo" challenge in . Level 20 Save File Management